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Hard starting YJ


 
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Boondocks96
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Joined: 25 Sep 2007

PostPosted: Tue Sep 25, 2007 1:41 pm    Post subject: Hard starting YJ Reply with quote

I have a 94 yj with the 2.5l engine. It has a 4.0 throttle body, open element intake and dynatech exhaust. other then that the engine is stock. The jeep started fine in the summer time but as of recently when i go to start it turns over for atleast if not more then 15 seconds and then it spits and sputters as if one cylinder fires shuts down then another fires over and over again for about 5 to ten seconds. then it will fire up and drive fine. I replaced the coil, fuel filter, wires, cap/rotor and crankshaft position sensor as well as changed the oil/filter. The spark plugs were changed 3 months ago with bosch platnum 2's and when i checked them yesterday they were already black. Any ideas or suggestions on what it could be?

Thanks
John
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Orangeamc13
Got Rev Limiter?
Got Rev Limiter?


Joined: 20 Feb 2006
Location: East Springfield, Massachusetts - U.S.A.

PostPosted: Tue Sep 25, 2007 6:13 pm    Post subject: Reply with quote

Throw in some Champions!
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wranglerRyan
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Joined: 22 Jun 2006

PostPosted: Wed Sep 26, 2007 5:25 pm    Post subject: Reply with quote

different plugs and run some seafoam through your system and watch it smoke all of the carbon out the exhaust. it should run fine after that my 97tj did the same thing.
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97 Wrangler SE 2.5L , 2in coil spacers, 1 in. body, 15x8 eagle alloys, 31x10.5 micky tompson ATZ, rancho 5000 shocks and steering stabilizer
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Orangeamc13
Got Rev Limiter?
Got Rev Limiter?


Joined: 20 Feb 2006
Location: East Springfield, Massachusetts - U.S.A.

PostPosted: Wed Sep 26, 2007 6:39 pm    Post subject: Reply with quote

Click here. >Champion Truck Plugs
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Boondocks96
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Joined: 25 Sep 2007

PostPosted: Wed Sep 26, 2007 8:59 pm    Post subject: Reply with quote

Put seafoam in it 3 days ago changed plugs to champs 2day. same problem
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